trasco couplings - str rulman
TRANSCRIPT
TRASCO®Couplings
TRASCO
®
JUBOFLEX
®
“P”COUPLINGS
BOLT
COUPLINGS
TRASCO
TRASCO
TRASCO
TRASCO
TRASCO® couplings
TRASCO® flexible couplings consist of two metal hubs and anelastic gear ring which is resistant to oils, chemical agents andheat. The construction allows safe power transmission betweendriver and driven shafts, absorbing impact loads, and torsionalvibrations.In its class TRASCO® coupling transmits more power in relationto the physical space occupied.It has a very compact design and allows safe power transmissionby absorbing peak loads and torsional vibrations.Moreover, the elastic deformation of the polyurethane gear ringcompensates angular and radial misalignments and also absorbs
small shaft length variation.The involute profile of the gear ring teeth prevents high stressconcentration on reduced surfaces and the crowned profileavoids the transmission of axial stress.The high duty factor of TRASCO® couplings is due to the fact thatthe elastic element works under compression and never underflexion.TRASCO® couplings are suitable for working in both horizontaland in vertical positions and easily support any load variation orreversal. The two coupling halves are electrically insulated fromeach other.
Hubs are available in cast iron GG25, die cast aluminum alloy orforged aluminum.Special request hubs are available in steel or cast iron GGG40.In the base execution, “GR” TRASCO® couplings are available intwo different versions: precision “P” or economy “S”.In all other executions, only the precision type is manufactured.The difference between “P” and “S” type hubs is that in theprecision execution the circular sections of the hubs are precisionmachined, while in the economy execution, they are simply
deburred.The “S” version allows lower axial displacement as indicated in thetechnical performance table. Each hub is available in two types“A” and “B”, which can accommodate maximum bore size inmm corresponding respectively to the first and second number ofthe coupling designation.Besides the various executions shown in the catalogue, it isalways possible to manufacture coupling hubs for specialapplications.
ATEX 94/9/EC compliance
It is possibile to ask for specific certification for use in hazardousarea according to EC standard 94/9/EC. TRASCO couplings are
available with specific mounting/operating instruction manual and conformity. For information, please contact our technical office.
“A” execution Spider “B” execution “BL” execution
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1Direct drives (073.00)
Description
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Direct drives (073.00)2
Standard spiders
(Shore) Colour Compound
Admissible Temperature [°C]
Applications
on work peaks
92 Sh A Yellow Polyurethane from - 40 to + 90 from - 50 to + 120 • the most of industrial application (low-mid power)
98 Sh A Red Polyurethane from - 30 to + 90 from - 40 to + 120 • high torque – narrow angular misalignment – torsion rigidity
64 Sh D Green Polyurethane from - 30 to + 110 from - 30 to + 130 • dampened areas – internal combustion engines
Spiders for special applications
(Shore) Colour Compound
Admissible Temperature [°C] Applications
on work peaks
94 Sh A-T Orange Polyurethane from - 50 to + 110 from - 60 to + 130 • internal combustion engines / high dynamic solicitations / highly dampened areas
64 Sh D-H Green Hytrel from - 50 to + 110 from - 60 to + 150 • high solicitation applications / high torsion rigidity / high temperature areas
PA White Polyurethane from - 20 to + 110 from - 30 to + 150 • high torsion rigidity / high temperature areas / high resistance
Spider
The gear ring is made of a particular polyurethane resin whichshows great advantages in comparison to the standard polyu-rethans on the market.In fact it is very resistant to aging and hydrolysis (therefore, alsosuitable for tropical climates) as well as fatigue proof andabrasion proof. It is self-dampening and shows a great resistance
to the main chemical agents, acids, oils, and ozone.Special types of gear rings are available in order to provide theright solution for each specific application covering a large rangeof temperatures and resisting specific chemical agents.
Direct drives (073.00)3
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TRASCO® coupling sizing is made according to DIN 740/2. Couplings must be selected to ensure that the max feasible torque isnever exceeded during operation.It is necessary to have correct sizing, so that all conditions hereunder are respected.
1) Verify the nominal torqueThe nominal torque of the coupling must be higher or equal to the nominal torque of the drive multiplied by the temperature safetyfactor.
Note that:
Where PN is the motor nominal power in kW.
2) Verify the maximum torqueThe max torque of the coupling must be higher or equal to the starting torque Ts multiplied by the safety factors Sθ, Sz, Su where Suis the higher value between driver and driven units.
3) Verify torque with reversalIn case of torque with reversals it must be verified that:
where Tkw = torque with reversal, which the coupling can bear, and Tw = torque variation of the drive.
In case of drives with high torsional vibrations (eg. piston compressors, combustion engine) it is recommended to make a torsionalvibration calculations in order to guarantee the correct functioning of the coupling. Please consult our technical office.
TRASCO® coupling sizing as per DIN 740/2
T (°C) –30°C / +30°C +40°C +60°C +80°C
Sθ 1 1,2 1,4 1,8
Temperature safety factor
0÷100 101÷200 201÷400 401÷800
SZ 1 1,2 1,4 1,6
Safety factor for frequency of starting
[[ ]]NNmmSSTTTT θθNNKNKN ⋅⋅≥≥
[ ]NmnP
9550T NN =
[ ]NmSuSSTT ZθSmaxK ⋅⋅⋅≥
[ ]NmSTT θNKN ⋅≥
[ ]NmSTT θSmaxK ⋅≥
[ ]NmSTT θWKW ⋅≥
1
KK
KK
KK
w
wA
r
rA
a
aA ≤∆∆+
∆∆+
∆∆
[ ]NmSTT θNKN ⋅≥
[[ ]]NNmmnnPP
99555500TT NNNN ==
[ ]NmSuSSTT ZθSmaxK ⋅⋅⋅≥
[ ]NmSTT θNKN ⋅≥
[ ]NmSTT θSmaxK ⋅≥
[ ]NmSTT θWKW ⋅≥
1
KK
KK
KK
w
wA
r
rA
a
aA ≤∆∆+
∆∆+
∆∆
[ ]NmSTT θNKN ⋅≥
[ ]NmnP
9550T NN =
[[ ]]NNmmSSuuSSSSTTTT ZZθθSSmmaaxxKK ⋅⋅⋅⋅⋅⋅≥≥
[ ]NmSTT θNKN ⋅≥
[ ]NmSTT θSmaxK ⋅≥
[ ]NmSTT θWKW ⋅≥
1
KK
KK
KK
w
wA
r
rA
a
aA ≤∆∆+
∆∆+
∆∆
[ ]NmSTT θNKN ⋅≥
[ ]NmnP
9550T NN =
[ ]NmSuSSTT ZθSmaxK ⋅⋅⋅≥
[ ]NmSTT θNKN ⋅≥
[ ]NmSTT θSmaxK ⋅≥
[[ ]]NNmmSSTTTT θθWWKWKW ⋅⋅≥≥
1
KK
KK
KK
w
wA
r
rA
a
aA ≤∆∆+
∆∆+
∆∆
Hub shaft connection checkHub shaft connection must always be checked by the user. It is important to verify the maximum torque in the drive is lower than thetorque which the hub shaft connection can bear. In case of keyway connection, it is important to verify the tensile strength of the hubmaterial with the load which the keyway seat must transmit.
Starting/h
Shock load type SU
Light 1,4
Medium 1,5
Hard 1,8
Shock load safety factor
color Coupling nominal torque Nm
TKmax Coupling maximum torque Nm
TKW Torque with reversal transmissible by the coupling Nm
TN Motor nominal torque Nm
TS Motor peak torque Nm
TW Torque with reversal of the machine Nm
Sθ� Temperature factor
SZ Start frequency factor
Su Motor or driven-side shock factor
PN Motor nominal torque kW
n rpm min-1
TRASCO
TRASCO
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Direct drives (073.00)4
Type of stress
Misalignment
TN
2TW
TN
TW
TKN
ϕdϕ
dTKN
Type ∆KaP [mm] ∆KaS [mm] ∆Kr [mm] ∆Kw [°]
19/24 1,2 - 0,20 1,30
24/32 1,4 1,1 0,22 1,30
28/38 1,5 1,2 0,25 1,30
38/45 1,8 1,4 0,28 1,30
42/55 2,0 1,6 0,32 1,30
48/60 2,1 1,7 0,36 1,30
55/70 2,2 1,8 0,38 1,30
65/75 2,6 2,0 0,42 1,30
75/90 3,0 2,4 0,48 1,30
90/100 3,4 2,8 0,50 1,30
100/110 3,8 3,0 0,52 1,30
110/125 4,2 3,2 0,55 1,30
125/145 4,6 3,4 0,60 1,30
The values shown in the table for radial and angular misalign-ment, must be corrected in case they are simultaneously actingon the coupling. The sum of the admissible value (A) and the respective valuesshown in the table must be lower or equal to 1.
[ ]NmSTT θNKN ⋅≥
[ ]NmnP
9550T NN =
[ ]NmSuSSTT ZθSmaxK ⋅⋅⋅≥
[ ]NmSTT θNKN ⋅≥
[ ]NmSTT θSmaxK ⋅≥
[ ]NmSTT θWKW ⋅≥
11
KKKK
KKKK
KK
ww
wwAA
rr
rrAA
a
aA ≤≤∆∆∆∆++
∆∆∆∆+
∆∆
Periodic Harmonic
Dynamic torsional rigidity
n=1500 min-1
∆KaP Maximum axial misalignment - ”P” execution mm
∆KaS Maximum axial misalignment - ”S” execution mm
∆Kr Maximum radial misalignment mm
∆Kw Maximum angular misalignment °
∆Kw
100%
∆Kr100%
Dynamic torsional rigidity CTdin is the first derivate of the nominaltorque of half coupling in respect to the torsion angle. ϕ is the tor-sion angle of half coupling in respect to the second half. As a general rule, CTdin is greater than CT and depends on thestress acting on the coupling.
Direct drives (073.00)5
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Technical performances
The technical performances below refer to all types of TRASCO®
executions and are valid for the indicated spiders when couplingsare correctly selected.
For particular applications needed, such as very high chemicalresistance, spiders made of special material are available.Contact our Technical Department.
Spider - 92 Sh A - YELLOW
Technical featuresType
19/24 24/32 28/38 38/45 42/55 48/60 55/70 65/75 75/90 90/100 100* 110* 125*
TorqueTKN [Nm] 10 35 95 190 265 310 410 625 1280 2400 3300 4800 6650
TKmax [Nm] 20 70 190 380 530 620 820 1250 2560 4800 6600 9600 13300
TKW [Nm] 2,7 9 25 49 69 81 107 163 333 624 858 1248 1729
Max. speed n (v=30m/s) [min-1] 14000 10600 8500 7100 6000 5600 4750 4250 3550 2800 2500 2240 2000
n (v=40m/s) [min-1] 19000 14000 11800 9500 8000 7100 6300 5600 4750 3750 3350 3000 2650
Dynamic torsionalrigidity
CTdin (1 TKN) [Nm/rad] 1280 4860 10900 21050 23740 36700 50720 97130 113320 190090 253080 311610 474960
CTdin (0,75 TKN) [Nm/rad] 1050 3980 8940 17260 19470 30090 41590 79650 92920 155870 207530 255520 389390
CTdin (0,5 TKN) [Nm/rad] 800 3010 6760 13050 14720 22750 31450 60220 70260 117860 156910 193200 294410
CTdin (0,25 TKN) [Nm/rad] 470 1790 4010 7740 8730 13490 18640 35700 41650 69860 93010 114520 174510
Torsion angleϕ (TKN) (°) 3,2°
� ϕ (TKmax) (°) 5°
Dampening factor Ψ (-) 0,80
Resonance factor VR (-) 7,90
Spider - 98 Sh A - RED
Technical featuresType
19/24 24/32 28/38 38/45 42/55 48/60 55/70 65/75 75/90 90/100
TorqueTKN [Nm] 17 60 160 325 450 525 680 950 1950 3600
TKmax [Nm] 34 120 320 650 900 1050 1250 1900 3900 7200
TKW [Nm] 4,4 16 42 85 117 137 178 245 500 936
Max. speedn (v=30m/s) [min-1] 14000 10600 8500 7100 6000 5600 4750 4250 3550 2800
n (v=40m/s) [min-1] 19000 14000 11800 9500 8000 7100 6300 5600 4750 3750
Dynamic torsionalrigidity
CTdin (1 TKN) [Nm/rad] 2920 9930 26770 48570 54500 65290 94970 129510 197500 312200
CTdin (0,75 TKN) [Nm/rad] 2390 8140 21950 39830 44690 53540 77880 106200 161950 256000
CTdin (0,5 TKN) [Nm/rad] 1810 6160 16600 30110 33790 40480 58880 80300 122450 193560
CTdin (0,25 TKN) [Nm/rad] 1070 3650 9840 17850 20030 24000 34900 47600 72580 114730
Torsion angleϕ (TKN) (°) 3,2°
� ϕ (TKmax) (°) 5°
Dampening factor Ψ (-) 0,80
Resonance factor VR (-) 7,90
Spider - 64 Sh D - GREEN
Technical featuresType
19/24 24/32 28/38 38/45 42/55 48/60 55/70 65/75 75/90 90/100
TorqueTKN [Nm] 21 75 200 405 560 655 825 1175 2410 4500
TKmax [Nm] 42 150 400 810 1120 1310 1650 2350 4820 9000
TKW [Nm] 5,5 19,5 52 105 145 170 215 305 625 1170
Max. speedn (v=30m/s) [min-1] 14000 10600 8500 7100 6000 5600 4750 4250 3550 2800
n (v=40m/s) [min-1] 19000 14000 11800 9500 8000 7100 6300 5600 4750 3750
Dynamic torsionalrigidity
CTdin (1 TKN) [Nm/rad] 5350 15110 27520 70150 79860 95510 107920 151090 248220 674520
CTdin (0,75 TKN) [Nm/rad] 4390 12390 22570 57520 65490 78320 88500 123900 203540 553110
CTdin (0,5 TKN) [Nm/rad] 3320 9370 17060 43490 49520 59220 66910 93680 153900 418200
CTdin (0,25 TKN) [Nm/rad] 1970 5550 10120 25780 29350 35100 39660 55530 91220 247890
Torsion angleϕ (TKN) (°) 2,5°
� ϕ (TKmax) (°) 3,6°
Dampening factor Ψ (-) 0,75
Resonance factor VR (-) 8,50
*= 95 Sh A
TRASCO
TRASCO
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Direct drives (073.00)6
TRASCO® couplings for motors according to IEC standards (spider hardness 92 shore)
Type
3000[1/min]
1500[1/min]
1000[1/min]
750[1/min]
d x l [mm]
PN[kW]
TN[Nm] Type K PN
[kW]TN[Nm] Type K PN
[kW]TN[Nm] Type K PN
[kW]TN[Nm] Type K
2 poles
4 - 6 - 8poles
800,75 2,5
19/24
9,2 0,55 3,7
19/24
6,2 0,37 3,9
19/24
5,8 0,18 2,5
19/24
9,219x40
1,1 3,7 6,2 0,75 5,1 4,5 0,55 5,8 3,9 0,25 3,5 6,5
90 S 1,5 5 4,6 1,1 7,5 3 0,75 8 2,8 0,37 5,3 4,324x50
90 L 2,2 7,4 3,1 1,5 10 2,3 1,1 12
24/32
6,6 0,55 7,9 2,9
100 L 39,8
24/328,1
2,2 15
24/32
5,31,5 15 5,3
0,75 11
24/32
7,2
28x603 20 4 1,1 16 5
112 M 4 13 6,1 4 27 2,9 2,2 22 3,6 1,5 21 3,8
132 S5,5 18
28/38
12,75,5 36
28/38
6,3 3 30
28/38
7,6 2,2 30
28/38
7,6
38x807,5 25 9,2
132 M 7,5 49 4,64 40 5,7
3 40 5,75,5 55 4,1
160 M11 36
38/45
12,511 72
38/456,2 7,5 74
38/456
4 54
38/45
8,3
42x11015 49 9,1 5,5 74 6
160 L 18,5 60 7,5 15 98 4,5 11 108 4,1 7,5 100 4,5
180 M 22 71
42/55
8,7 18,5 121
42/55
5,1
42/55 42/55
48x110180 L 22 144 4,3 15 148 4,1 11 145 4,2
200 L30 97 6,3
30 196 3,118,5 181 3,4
15 198 3,1 55x11037 120 5,1 22 215 2,8
225 S 37 24048/60
348/60
18,5 24448/60
2,955x110 60x140
225 M 45 145 4,2 45 292 2,4 30 293 2,4 22 290 2,4
250 M 55 177 48/60 4 55 356 55/70 2,4 37 361 55/70 2,3 30 392 65 2,6 60x140 65x140
280 S 75 241
55/70
3,5 75 48475/90
5,1 45 43875
5,7 37 48375
5,1
65x140
75x140280 M 90 289 2,9 90 581 4,3 55 535 4,6 45 587 4,2
315 S 110 353 2,4 110 70775/90
3,5 75 727 75/90 3,4 55 71275/90
3,5
80x170315 M 132 423
75/90
5,9 132 849 2,9 90 873 2,8 75 971 6,2
315 L160 513 4,8 160 1030
90/1005,9 110 1070
905,7 90 1170
905,2
200 641 3,9 200 1290 4,7 132 1280 4,7 110 1420 4,2
355 L
250 801 3,1250 1610
90/1003,7
160 155090/100
3,9 132 1710 90/100 3,5
75x140 95x170
90/100
200 1930 3,1 160 2070100
2,9
315 1010 6 315 2020 3 250 2420 100 2,5 200 2580 2,3
400 L355 1140 5,3 355 2280
1002,6
315 3040 100 2 250 3220 100 1,8 80x170 110x210400 1280 4,7 400 2560 2,3
PN Motor nominal torque kW
TN Motor nominal torque Nm
K Safety factor
d x l Motor shaft’s end mm
Direct drives (073.00)7
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“GR” base program
Dimensional specification hubs in GG25
TypeFa max[mm]
Fbmax[mm]
Fg [mm] execution E
[mm]
A
[mm]
B
[mm]
A B execution AL execution BL execution M
[mm]
S
[mm]
N
[mm]
G
[mm]A B H [mm] L [mm] I [mm] H [mm] L [mm] I [mm] H [mm] L [mm] I [mm] H [mm] L [mm] I [mm]
19/24* - 24 - - 40 - 40 25 66 - 25 66 - - - - 50 - - 16 2 12 18
24/32 24 32 8 10 55 40 55 30 78 24 30 78 - 50 128 44 60 128 - 18 2 14 27
28/38 28 38 8 10 65 48 65 35 90 28 35 90 - 60 160 53 80 160 - 20 2,5 15 30
38/45 38 45 10 12 80 66 80 45 114 37 45 114 - 80 214 72 110 214 - 24 3 18 38
42/55 42 55 10 12 95 75 95 50 126 40 50 126 - 110 246 100 110 246 - 26 3 20 46
48/60 48 60 12 12 105 85 105 56 140 45 56 140 - 110 278 99 140 278 - 28 3,5 21 51
55/70 55 70 15 15 120 98 120 65 160 52 65 160 - 110 280 97 140 280 - 30 4 22 60
65/75 65 75 15 15 135 115 135 75 185 61 75 185 - 140 315 126 140 315 - 35 4,5 26 68
75/90 75 90 15 15 160 135 160 85 210 69 85 210 - 140 350 124 170 350 - 40 5 30 80
90/100 90 100 20 20 200 160 180 100 245 81 100 245 81 170 425 151 210 425 191 45 5,5 34 100
100/110 115 - 45 - 225 180 - 110 270 89 110 270 - - - - - - - 50 6 38 113
110/125 125 - 55 - 255 200 - 120 295 96 120 295 - - - - - - - 55 6,5 42 127
125/145 145 - 55 - 290 230 - 140 340 112 140 340 - - - - - - - 60 7 46 147
ozzoM"B"
ozzoM"A"
M
N
I
H
A BE
L
P
SS
I
t
G
bF
gFgFaF
LC/1/701021
H
GRMP...A
AR
GRMP...B
ozzoM"B"
ozzoM"A"
M
N
I
H
A BE
L
P
SS
I
t
G
bF
gFgFaF
LC/1/701021
H
GRMP...A
AR
GRMP...B
TypeFa max [mm]
Fb max [mm]
Fg [mm] execution E
[mm]A
[mm]B
[mm]L
[mm]H
[mm]M
[mm]S
[mm]N
[mm]I
[mm]G
[mm]
19/24 - 24 - 4 40 40 40 66 25 16 2 12 - 18
24/32 24 32 6 22 55 40 55 78 30 18 2 14 24 27
28/38 28 38 8 26 65 48 65 90 35 20 2,5 15 28 30
38/45 38 45 10 36 80 66 77 114 45 24 3 18 37 38
42/55 - 55 - 15 95 - 95 126 50 26 3 20 - 46
48/60 - 60 - 24 105 - 105 140 56 28 3,5 21 - 51
Dimensional specification hubs in aluminum
* Sintered steel
A B
Valid bore for “P” execution
TRASCO GR hub
“P” precise execution; “S” standard execution
Tipo
“A” Execution ; Execution “B”
Long hub
GRM 42/55 AP L
TRASCO GR aluminum hub
Type
Execution “A” ; Execution “B”
GRMALU 38/45 A
TRASCO GR spider
Type
Yellow colour if not indicated,
“R” red, “V” greenAR 19/24 R
Order form
TRASCO® couplings are dimensionally manufactured to hubtypes “A” and “B”, the difference being the maximum shaftdiameter which hubs can accept (corresponding respectively tothe first and second code number).The long hub execution “L” (allows full cover of the motor shaft) is
available in both “A” and “B” executions.Materials used for manufacture are:• cast iron grade GG25 (all sizes);• aluminum, diecasting • cast iron grade GGG40 and steel upon request.
TRASCO
TRASCO
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Direct drives (073.00)8
Stock rangeHubs with finished bore H7, keyway, stop screw
*ALU = Aluminum - AC = Steel - GG = Cast iron
19/24
24
24/32 28/38 38/45 42/55 48/60 55/70 65/75 75/90 90/100
ALU AC ALU GG ALU GG ALU GG GGALU GGALU GG GG GG GG
B B A B A B A B A B A B A B B A B B A B A B A A A
1010
11
12
14
15
16
18
19
20
22
25
28
30
32
35
38
40
42
45
48
50
55
60
65
70
75
80
85
90
• •• •• •• • •• • •• • •• •
• • •• • •
• • ••
• • •• • •• • •• • •• • •• • •• • •• • • •
••
• • • • • • • •• • • • • • • •
• • • • • • • •• • • • • • • •
• • • • •• • • •• • • • • • • • •
• • • • • • • •• • • • • • •
• • • • • •• • • • •
•• •
• • • • • • • •• • • • • • • •
• • • • • •• • • •• • •
• ••••
•
Type
Material*
Hub execution
Stock range bore [mm]
Hub dimension P [mm] t [mm]
19 M5 10
24/32 M5 10
28/38 M6 15
38/45 M8 15
42/55 M8 20
48/60 M8 20
55/70 M10 20
65/75 M10 20
75/90 M10 25
90/100 M12 30
100/100 M12 30
110/125 M16 35
125/145 M16 40
ttPP
GRMP....AGRMP....A
Setscew specifics per hub dimension
•
Direct drives (073.00)9
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ØØdd
ØØdd
LL
ØØBB
ØØBB
ØØEE
II II
NNSSHH HH
SSMM
B2
Ød
Ød
LI I
NS SH HM
ØB
ØB
ØE
B1
Ød
Ød
L
ØB
ØB
ØE
I I
NSH H
SM
B2
ØØdd
ØØdd
LLII II
NNSS SSHH HHMM
ØØBB
ØØBB
ØØEE
B1
B1 B2
* Only “B1” execution
“GRB” taper bush series
TRASCO® couplings type GRB are manufactured in cast ironGG25. They combine the typical high performances of standardcouplings with the mounting and dismounting advantages offe-red by the SER-SIT® taper bush:- they are ready to be mounted;- they are manufactured in two different executions:
B1 and B2 (see picture);
• they solve the problem of fighting corrosion;• hubs type B1 may be axially moved for spider replacement;• they may be used in all types of machinery.
Taper locktype
Transmissible torque[Nm]
1108 (2820) 150
1610 (4025) 490
1615 (4040) 490
2012 (5030) 800
2517 (6545) 1300
3535 (9090) 5000
Ød
Ød
L
ØB
ØB
ØE
I I
NSH H
SM
B2
Ød
Ød
LI I
NS SH HM
ØB
ØB
ØE
B1
Ød
Ød
L
ØB
ØB
ØE
I I
NSH H
SM
B2
Ød
Ød
LI I
NS SH HM
ØB
ØB
ØE
B1
Type Taper bushE
[mm]B
[mm]L
[mm]H
[mm]M
[mm]S
[mm]N
[mm]I
[mm]
28/38 1108 (2820) 65 65 66 23 20 2,5 15 -
38/45 1108 (2820) 80 78 70 23 24 3 18 15
42/55 1610 (4025) 95 94 78 26 26 3 20 16
48/60 1615 (4040) 105 104 106 39 28 3,5 21 28
55/70 2012 (5030) 120 118 96 33 30 4 22 20
65/75 2012 (5030) 135 133 101 33 35 4,5 26 19
75/90 2517 (6545) 160 158 130 45 40 5 30 36
90/100 * 3535 (9090) 200 180 223 89 45 5,5 34 70
TRASCO GRMB hub for taper lock
Type
“B1” Execution ; “B2” Execution GRMB 42/55 B1
Spider
Type
Yellow if not indicated, “R” red, “V” green
AR 19/24 R
Order form
TRASCO
TRASCO
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Direct drives (073.00)10
"GRCAL"Esecuzione 2
M
L2L1
HH
NS S II
Ø B
Ø E
"GRCAL"Esecuzione 3
L1L1
L2L2
IIII
HH HH
NN
MM
SS SS
ØØBB
ØØEE
"GRCAL"Esecuzione 2
MM
L2L2L1L1
HHHH
NNSS SS IIII
Ø B
Ø B
Ø E
Ø E
"GRCAL"Esecuzione 3
L1
L2
II
H H
N
M
S S
ØB
ØE
"GRCAL"ESECUZIONE 1 cal. interno
"GRCAL"ESECUZIONE 1 cal. esterno
L2L2
L1L1
ØØ B B
ØØ E E
II II
HH HH
SS SSNN
MM
“GRCAL” series for use with SIT-LOCK® elements type 8
FIG 1 FIG 2 FIG 3
*: AC = steel / GG 25 = cast iron 25 / GS-400 = Spheroidal cast-iron 400
This execution has been introduced to incorporate advantagesoffered by the SIT-LOCK® locking elements in the shaft-hubconnection.The system allows for a quick, safe and backlash free mountingwithout the use of keyway and eliminating the need for lock
washers, spacers and stop rings.Many different solutions may be created to solve all kinds ofapplication needs. We include hereunder a very useful example.In fact, the same hubbore allows the fitting of different shaft diameters.
Typed
[mm]D
[mm]H
[mm]E
[mm]B
[mm]L1[mm]
L2[mm]
M[mm]
S[mm]
N[mm]
I[mm]
Material* Fig.
38/45 14 -16 -18 -19 - 20 - 22 - 24 - 25 - 28 - 30 55 30 80 78 84 116 24 3 18 22 AC 3
42/5514 - 16 - 18 - 19 - 20 - 22 - 24 - 25 - 28 - 30 55 22
95 9370 102
26 3 2014 GS-400 2
24 - 25 - 28 - 30 - 32 - 35 - 38 - 40 65 32 90 122 22 AC 3
48/6014 - 16 - 18 - 19 - 20 - 22 - 24 - 25 - 28 - 30 55 38
105 103104 136
28 3,5 2127 GS-400 1
24 - 25 - 28 - 30 - 32 - 35 - 38 - 40 65 33 94 126 22 AC 3
55/70
14 -16 -18 -19 - 20 - 22 - 24 - 25 - 28 - 30 55 38
120 118
106 138
30 4 22
25 GG25 1
24 - 25 - 28 - 30 - 32 - 35 - 38 - 40 65 38 106 138 25 GS-400 1
30 - 32 - 35 - 38 - 40 - 42 - 45 - 48 - 50 80 38 106 138 25 AC 3
65/75
14 - 16 - 18 - 19 - 20 - 22 - 24 - 25 - 28 - 30 55 38
135 133
111 143
35 4,5 26
24 GG25 1
24 - 25 - 28 - 30 - 32 - 35 - 38 - 40 65 38 111 143 24 GS-400 1
30 - 32 - 35 - 38 - 40 - 42 - 45 - 48 - 50 80 25 85 117 11 GS-400 2
75/90
14 - 16 - 18 - 19 - 20 - 22 - 24 - 25 - 28 - 30 55 38
160 158
116 148
40 5 30
22 GG25 1
24 - 25 - 28 - 30 - 32 - 35 - 38 - 40 65 38 116 148 22 GG25 1
30 - 32 - 35 - 38 - 40 - 42 - 45 - 48 - 50 80 41 122 154 25 GS-400 1
90/100
14 - 16 - 18 - 19 - 20 - 22 - 24 - 25 - 28 - 30 55 38
200 180
121 153
45 5,5 34
19 GG25 1
24 - 25 - 28 - 30 - 32 - 35 - 38 - 40 65 38 121 153 19 GG25 1
30 - 32 - 35 - 38 - 40 - 42 - 45 - 48 - 50 80 41 127 159 22 GG25 1
Fig. 1External Cal
Fig. 1Internal Cal
Fig. 2
Fig. 3
TRASCO GRMC hub for SIT-LOCK type 8
Type
GRMC 48/60
Spider
Type
Yellow if not indicated, “R” red, “V” green
AR 38/45 R
SIT-LOCK element
Type
Bore diameter
External bore diameter
8 F20CAL 55/
Order form
Direct drives (073.00)11
www.sitspa.com
“GRL” series with intermediate shaft
This series allows the joining of two shafts (even very distant)through two TRASCO® couplings and an intermediate shaft(length “Lw”) of customized dimension.The presence of two polyurethane rings allows high dampening
capability and large radial misalignments.Hubs are classically made from cast-iron, while shafts are fromsteel; though, different materials can be used, according todifferent applications.
bbFF
oozzzzooMMAA
oozzzzooMMBB
wwzzLLwwHH LL
II
GG
aaFF
HH
BBAA
IIIINNSS SS
HH HH
EE
MMLL
LC/3/701081
GRMP...A
GRMP...A
GRMP...BALLUNGA
AR
TypeFa[mm]
Fb[mm]
E[mm]
A[mm]
B[mm]
H [mm]execution
L [mm] M
[mm]S
[mm]N
[mm]
I [mm]execution G
[mm]A-B AL BL A-B AL-BL A B AL BL
24/32 9 - 24 11 - 32 55 40 55 30 50 60 78 128 18 2 14 24 - 44 - 27
28/38 9 - 28 11 - 38 65 48 65 35 60 80 90 160 20 2,5 15 28 - 53 - 30
38/45 11 - 38 13 - 45 80 66 80 45 80 110 114 214 24 3 18 37 - 72 - 38
42/55 11 - 42 13 - 55 95 75 95 50 110 110 126 246 26 3 20 40 - 100 - 46
48/60 13 - 48 13 - 60 105 85 105 56 110 140 140 278 28 3,5 21 45 - 99 - 51
55/70 16 - 55 16 - 70 120 98 120 65 110 140 160 280 30 4 22 52 - 97 - 60
65/75 16 - 65 16 -75 135 115 135 75 140 140 185 315 35 4,5 26 61 - 126 - 68
75/90 16 - 75 16 - 90 160 135 160 85 140 170 210 350 40 5 30 69 - 124 - 80
90/100 21 - 90 21 - 100 200 160 180 100 170 210 245 425 45 5,5 34 81 81 151 191 100
100/110 46 - 115 - 225 180 - 110 - - 270 - 50 6 38 89 - - - 113
110/125 56 - 125 - 255 200 - 120 - - 295 - 55 6,5 42 96 - - - 127
125/145 56 - 145 - 290 230 - 140 - - 340 - 60 7 46 112 - - - 147
valid bore for “P” execution
bF
ozzoMA
ozzoMB
wzLwH L
I
G
aF
H
BA
IINS S
H H
E
ML
LC/3/701081
GRMP...A
GRMP...A
GRMP...BALLUNGA
AR
TRASCO GR hub
“P” Precise execution; “S” standard execution
Type
“A” Execution ; “B” Execution
Long hub
GRM 42/55 AP L
Spider
Type
Yellow if not indicated, “R” red, “V” green
AR 38/45 R
Shaft length on request.
Order form
TRASCO
TRASCO
www.sitspa.com
Direct drives (073.00)12
“GRL CAL3” series with intermediate shaft
This series allows the joining of two shafts (even two spaced)through two TRASCO® couplings and an intermediate shaft(length “LR2”) of customized dimension, fixed with hubs throu-gh shrink-disc.The presence of two polyurethane elements allows high
dampening capability and large radial misalignments.Hubs are classically made of cast-iron, while shafts are madeof steel; though different materials can be used according todifferent applications.
Ø Ø dH
ØØ D
S SNE1L 3L
2L L
2RL2RZL
RØ Ø
d
LC/2/702082
Type
External hubDimensions [mm] GRL-CAL3 Internal hub
DH L1 L3 L E N s L2LR2min.
LZR2Intermediate shaft
SITLOCK 3 elements
dmin dmax TypeScrew
Din 912-12.9
M·L
TA[Nm]dR C [Nm/Rad·m]
14 4 15 30 11 26 50 13 10 1,5 61,5 109 LR2+22 10x2.0 68,36 10x16 M4X10 4,9
19/24 6 24 40 25 26 67 16 12 2 81 120 LR2+50 12x2.0 130 12x18 M4X10 4,9
24/32 8 28 55 30 38 86 18 14 2 102 156 LR2+60 20x3.0 954,9 20x28 M6X18 17
28/38 10 38 65 35 45 100 20 15 2,5 117,5 177 LR2+70 25x2.5 1811 25x34 M6X18 17
38/45 12 45 80 45 45 114 24 18 3 135 192 LR2+90 32x3.5 5167 32x43 M6X18 17
42/55 14 55 95 50 52 128 26 20 3 151 214 LR2+100 40x4.0 11870 40x53 M6X18 17
48/60 15 60 105 56 70 154 28 21 3,5 178,5 261 LR2+112 45x4.0 17486 45x59 M8X22 41
5570 20 74 120 65 80 175 30 22 4 201 288 LR2+130 55x4.0 33543 55x71 M8X22 41
65/75 22 80 135 75 80 190 35 26 4,5 220,5 307 LR2+150 60x4.0 44362 60x77 M8X22 41
Ø dH
Ø D
S SNE1L 3L
2L L
2RL2RZL
RØ
d
LC/2/702082
TRASCO GR hub
Type
GRM 48/60 per cal 3
Spider
Type
Yellow if not indicated, “R” red, “V” green
AR 38/45 R
Intermediate shaft on request
Order form
Direct drives (073.00)13
www.sitspa.com
“GRF” flange series
This series, with flanges, has been developed for applications onheavy machinery and to combine different shafts and flangessolutions.• Shaft-shaft: using two hubs type “BF”, allows the replacement of
the elastic element without traversing of either motor-machine ordriven-machine.• Shaft-flange: using one hub type “CF” and one type “GR”.• Flange-Flange: using two hubs type “CF”.
AE
H M VS S
P
cL
aE
cB
N
aF G Cr
ND
AE
IV HH M
N
A aE
bB
bL
S
aF
aFG
FB
FC
LC/1/701032
GRMP...A AR BFS
CF
AE
H M VS S
P
cL
aE
cB
N
aF G Cr
ND
AE
IV HH M
N
A aE
bB
bL
S
aF
aFG
FB
FC
LC/1/701032
GRMP...A AR BFS
CFType
Famin
[mm]
Famax
[mm]
E[mm]
Ea[mm]
A[mm]
C[mm]
D[mm]
Nr[mm]
P[mm]
G[mm]
H[mm]
Bb[mm]
Bc[mm]
I[mm]
V[mm]
M[mm]
S[mm]
N[mm]
Lb[mm]
Lc[mm]
19/24 - 19 40 65 40/32 40 50 5 4,5 18 25 26 1,5 17 8 16 2 12 74 49
24/32 9 24 55 80 55/40 55 65 5 4,5 27 30 31 1,5 22 8 18 2 14 86 56
28/38 9 28 65 100 65/48 65 80 6 6,5 30 35 36 1,5 25 10 20 2,5 15 100 65
38/45 11 38 80 115 66 80 95 6 6,5 38 45 46 1,5 35 10 24 3 18 124 79
42/55 11 42 95 140 75 95 115 6 9 46 50 51 2 38 12 26 3 20 138 88
48/60 13 48 105 150 85 105 125 8 9 51 56 57 2 44 12 28 3,5 21 152 96
55/70 16 55 120 175 98 120 145 8 11 60 65 66 2 49 16 30 4 22 176 111
65/75 16 65 135 190 115 135 160 10 11 68 75 76 2 59 16 35 4,5 26 201 126
75/90 16 75 160 215 135 160 185 10 14 80 85 87 2,5 66 19 40 5 30 229 144
90/100 21 90 200 260 160 200 225 12 14 100 100 102 3 80 20 45 5,5 34 265 165
100/110 46 115 225 285 180 225 250 12 14 113 110 112 4 85 25 50 6 38 295 185
110/125 56 125 255 330 200 255 290 12 18 127 120 122 4 94 26 55 6,5 42 321 201
125/145 56 145 290 370 230 290 325 16 18 147 140 142 5 110 30 60 7 46 370 230
BF CF
AE
H M VS S
P
cL
aE
cB
N
aF G Cr
ND
AE
IV HH M
N
A aE
bB
bL
S
aF
aFG
FB
FC
LC/1/701032
GRMP...A AR BFS
CF
CF
BF
Valid bore for “P” execution.
Nr Number of screws
Ring side flange “BF” and “CF” execution
Type
GRFCF 48
Shaft side flange “BF” execution
Type
GRFBF 48
Order form
For hub “GR” order form please see TRASCO® GR base program
TRASCO
TRASCO
www.sitspa.com
Direct drives (073.00)14
The GRF C series has the same characteristics as the BF series, while being compact in dimension.
AE
H
S N S
M V H
bB
bL
E
PIB
G
aF aFr
ND
E AH
NS SM V
cB
E
cL
aF
rN
D
G
CP
NFC
NFB
LC/2/701042
GRMP...A
ARCFN BFN
MFN
CFN
AE
H
S N S
M V H
bB
bL
E
PI
B
G
aF aFr
ND
E A
HNS SM V
cB
E
cL
aF
rN
D
G
CP
NFC
NFB
LC/2/701042
GRMP...A
ARCFN BFN
MFN
CFN
TypeFamin[mm]
Famax[mm]
E[mm]
A[mm]
B[mm]
H[mm]
I[mm]
Lb[mm]
Lc[mm]
V[mm]
M[mm]
S[mm]
N[mm]
Bb[mm]
Bc[mm]
G[mm]
D[mm] Nr
C[mm]
P[mm]
24/32 9 24 55 40 36 30 22 86 56 8 18 2 14 31 1,5 27 45 8 36 M5
28/38 9 28 65 48 42 35 25 100 65 10 20 2,5 15 36 1,5 30 54 8 44 M6
38/45 11 38 80 66 52 45 35 124 79 10 24 3 18 46 1,5 38 66 8 54 M8
42/55 11 42 95 75 62 50 38 138 88 12 26 3 20 51 2 46 80 12 65 M8
48/60 13 48 105 85 70 56 44 152 96 12 28 3,5 21 57 2 51 90 12 75 M8
55/70 16 55 120 98 80 65 49 176 111 16 30 4 22 66 2 60 102 8 84 M10
65/75 16 65 135 115 94 75 59 201 126 16 35 4,5 26 76 2 68 116 12 96 M10
75/90 16 75 160 135 108 85 66 229 144 19 40 5 30 87 2,5 80 136 15 112 M12
90/100 21 90 200 160 142 100 80 265 165 20 45 5,5 34 102 3 100 172 15 145 M16
100/110 46 115 225 180 158 110 85 295 185 25 50 6 38 112 4 113 195 15 165 M16
110/125 56 125 255 200 178 120 94 321 201 26 55 6,5 42 122 4 127 218 15 180 M20
125/145 56 145 290 230 206 140 110 370 230 30 60 7 46 142 5 147 252 15 215 M20
BFN CFN
AE
H
S N S
M V H
bB
bL
E
PI
B
G
aF aFr
ND
E A
HNS SM V
cB
E
cL
aF
rN
D
G
CP
NFC
NFB
LC/2/701042
GRMP...A
ARCFN BFN
MFN
CFN
Valid bore for “P” execution.
Nr Number of screws
Ring side flange “BFN” and “CFN” execution
Type
GRFCFN 48
Shaft side flange “BFN” execution
Type
GRFBFN 48
Order form
For hub “GR” order form please see TRASCO® GR base program
“GRF C” flange series
BFN
CFN
Direct drives (073.00)15
www.sitspa.com
“GRS” double cardanic series
It allows compensation of high axial, radial and angular misalign-ment. Moreover, the use of the double spider allows for
double the torsion angle and provides very high dampeningeffect.
ØØFaFa
SS SSMM VV MM
ØØFbFb
ØØGG
LLØØ
AAØØ
EE
SS NN NN SSII II
HH CC HH
ØØBB
GRS
GRMP...B
GRMP...AAR
AR
TypeFa[mm]
Fb[mm]
H[mm]
V[mm]
C [mm]
M [mm]
S[mm]
N[mm]
L[mm]
E[mm]
A[mm]
B[mm]
G[mm]
∆Kr[mm]
�∆Kw[°]
24/32 9 - 24 11 - 32 30 16 52 18 2 14 112 55 40 55 27 0,89
1°30’
28/38 9 - 28 11 - 38 35 18 58 20 2,5 15 128 65 48 65 30 1
38/45 11 - 38 13 - 45 45 20 68 24 3 18 158 80 66 80 38 1,15
42/55 11 - 42 13 - 55 50 22 74 26 3 20 174 95 75 95 46 1,26
48/60 13 - 48 13 - 60 56 24 80 28 3,5 21 192 105 85 105 51 1,36
55/70 16 - 55 16 - 70 65 28 88 30 4 22 218 120 98 120 60 1,52
65/75 16 - 65 16 - 75 75 32 102 35 4,5 26 252 135 115 135 68 1,75
75/90 16 - 75 16 - 90 85 36 116 40 5 30 286 160 135 160 80 2
90/100 21 - 90 21 - 100 100 40 130 45 5,5 34 330 200 160 180 100 2,5
Valid bore for “P” execution
ØFa
S SM V M
ØFb
ØG
L
ØA
ØE
S N N SI I
H C H
ØB
GRSGRS
GRMP...BGRMP...B
GRMP...AGRMP...AARAR
ARAR
Fa Bore of hub “A” mm
Fb Bore of hub “B” mm
∆Kr Maximum radial misalignment mm
∆Kw Maximum angular misalignment °
Spacer element
Type
GRS 48/60
Order form
For hub “GR” order form please see TRASCO® GR base program
GRS
TRASCO
TRASCO
www.sitspa.com
Direct drives (073.00)16
“GR FRT” drum brake series
This series has been developed to suit drum-brake (FRT)transmissions.It is constituted as an elastic coupling screwed to the brake band.Components are either made of cast-iron (G25), spheroidal
cast-iron (GS400), or steel according to application.Also, assembling of different dimensioned brake bands to anykind of coupling is allowed. See below tables.
TRF
DRF
rN
D aD
HV
SS N
aB
dC
H
bFG
P
M
L
aFAE
6jB
6jBA
L
aF bD
S N S
V
H M
P
H
tC
rN
D
bFE
GbB
LC/3/702010
FRT
FRD
GR FRT - drum brake WFRT
[kg]
JFRT
[kg m2]
min-1with Vmax30 m/s
Db x Bb 28 38 42 48 55 65 75 90 100 110 125
160x60 30 31 - - - - - - - - - 2,12 0,01 3580
200x75 35 36 38 39 41 - - - - - - 3,45 0,03 2860
250x95 43 44 46 47 49 50 52 - - - - 6,87 0,08 2290
315x118 - - 55 56 58 59 61 64 - - - 14,95 0,28 1820
400x150 - - 68 69 71 72 74 77 79 82 - 31,20 0,89 1430
500x190 - - - - - 87 89 92 94 97 101 60,00 2,70 1150
630x236 - - - - - - 107 110 112 115 119 112,00 8,01 910
710x265 - - - - - - - - 123 126 130 161,00 14,90 810
800x300 - - - - - - - - - - 144 202,00 27,20 720
TypeFa;Fbmin[mm]
Fa;Fb max [mm] E
[mm]
A
[mm]
B
[mm]
H
[mm]
L
[mm]
G
[mm]
NrV
[mm]
M
[mm]
S
[mm]
N
[mm]
D
[mm]
P
[mm]Fa Fb(GG25)
Fb(GS400)
Fb(Steel)
28 FR 10 28 20 22 24 65 48 38 35 90 30 8 6,5 20 2,5 15 52 M6
38 FR 12 38 28 32 34 80 66 50 45 114 38 8 7,5 24 3 18 66 M8
42 FR 14 42 30 38 42 95 75 60 50 126 46 12 9,5 26 3 20 80 M8
48 FR 15 48 35 45 48 105 85 68 56 140 51 12 10,5 28 3,5 21 90 M8
55 FR 20 55 42 50 55 120 98 78 65 160 60 8 12,5 30 4 22 102 M10
65 FR 22 65 48 55 65 135 115 92 75 185 68 12 13,5 35 4,5 26 116 M10
75 FR 30 75 58 70 75 160 135 106 85 210 80 15 15,5 40 5 30 136 M12
90 FR 40 90 75 90 100 200 160 140 100 245 100 15 18,5 45 5,5 34 172 M16
100 FR 45 115 - 100 - 225 180 156 110 270 113 15 20,5 50 6 38 195 M16
110 FR 55 125 - 110 - 255 200 176 120 295 127 15 23,5 55 6,5 42 218 M20
125 FR 55 145 - 130 - 290 230 204 140 340 147 15 27,5 60 7 46 252 M20
TRF
DRF
rN
D aD
HV
SS N
aB
dC
H
bFG
P
M
L
aFAE
6jB
6jBA
L
aF bD
S N S
V
H M
P
H
tC
rN
D
bFE
G
bB
LC/3/702010
FRT
FRD
WFRT “GRFRT” weight kg
JFRT “GRFRT” moment of inertia kgm2
Nr Number of screws
Brake side hub
Type
GRFR 48
Band on request.
Order form
For hub “GR” order form please see TRASCO® GR base programGRFRT
Direct drives (073.00)17
www.sitspa.com
“GR FRD” brake disc series
This series has been developed to suit disc-brake (FRD)transmissions according to DIN 15431/15435.It is constituted as an elastic coupling screwed to the brake band.Components are either made of cast-iron (G25), spheroidal
cast-iron (GS400), or steel according to application.Also, assembling of different dimensioned brake bands to any kindof coupling is allowed. See below tables.
GR FRD - brake disc WFRD
[kg]
JFRD
[kg m2]
min-1
withVmax40 m/sDa x Ba 28 38 42 48 55 65 75 90 100 110 125
200x12,5 X X - - - - - - - - - 2,93 0,0154 3820
250x12,5 X X X X - - - - - - - 4,66 0,0376 3060
315x16 - - X X X X X - - - - 8,62 0,1118 2430
400x16 - - - X X X X X X X - 15,23 0,3152 1910
500x16 - - - - X X X X X X X 23,96 0,7680 1530
630x20 - - - - - X X X X X X 47,72 2,4264 1210
710x20 - - - - - X X X X X X 60,93 3,9151 1080
800x25 - - - - - - - X X X X 94,91 7,8790 950
900x25 - - - - - - - - - X X 118,95 12,6091 850
TypeFa;Fbmin[mm]
Fa;Fb max [mm]E
[mm]
A
[mm]
B
[mm]
H
[mm]
L
[mm]
G
[mm]
Nr V
[mm]
M
[mm]
S
[mm]
N
[mm]
D
[mm]
Cd
[mm]
P
[mm]Fa Fb
(GG25)Fb
(GS400)Fb
(Steel)
28 FR 10 28 20 22 24 65 48 38 35 90 30 8 6,5 20 2,5 15 52 28,5 M6
38 FR 12 38 28 32 34 80 66 50 45 114 38 8 7,5 24 3 18 66 37,5 M8
42 FR 14 42 30 38 42 95 75 60 50 126 46 12 9,5 26 3 20 80 40,5 M8
48 FR 15 48 35 45 48 105 85 68 56 140 51 12 10,5 28 3,5 21 90 45,5 M8
55 FR 20 55 42 50 55 120 98 78 65 160 60 8 12,5 30 4 22 102 52,5 M10
65 FR 22 65 48 55 65 135 115 92 75 185 68 12 13,5 35 4,5 26 116 61,5 M10
75 FR 30 75 58 70 75 160 135 106 85 210 80 15 15,5 40 5 30 136 69,5 M12
90 FR 40 90 75 90 100 200 160 140 100 245 100 15 18,5 45 5,5 34 172 81,5 M16
100 FR 45 115 - 100 - 225 180 156 110 270 113 15 20,5 50 6 38 195 89,5 M16
110 FR 55 125 - 110 - 255 200 176 120 295 127 15 23,5 55 6,5 42 218 96,5 M20
125 FR 55 145 - 130 - 290 230 204 140 340 147 15 27,5 60 7 46 252 112,5 M20
TRF
DRF
rN
D aD
HV
SS N
aB
dC
H
bFG
P
M
L
aFAE
6jB
6jBA
L
aF bD
S N S
V
H M
P
H
tC
rN
D
bFE
G
bB
LC/3/702010
FRT
FRD
TRF
DRF
rN
D aD
HV
SS N
aB
dC
H
bFG
P
M
L
aFAE
6jB
6jBA
L
aF bD
S N S
V
H M
P
H
tC
rN
D
bFE
G
bB
LC/3/702010
FRT
FRD
WFRD “GRFRD” disc weight kg
JFRD “GRFRD” moment of inertia kgm2
Nr Number of screws
Brake side hub
Type
GRFR 48
Disc on request.
Order form
For hub “GR” order form please see TRASCO® GR base program GRFRD
TRASCO
TRASCO
www.sitspa.com
Direct drives (073.00)18
TRASCO® couplings weight and moment of inertia
TypeGR
(A esecuz.)fig. 1
GR (B esecuz.)
fig. 1
GR(AB esecuz.)
fig. 1
GRALU (esecuz. A)
fig. 1
GRALU (B esecuz.)
fig. 1
GRALU (AB esecuz.)
fig. 1
GRB
fig. 2
GRF (CF)fig. 3
GRF (CFN)fig. 4
GRF (BFN)fig. 5
Spacer elementGRSfig. 6
19/24W [kg] - 0,37 - - 0,14 - - 0,23 - - -
J [kgm2] - 0,0001 - - 0,00004 - - 0,00006 - - -
24/32W [kg] 0,56 0,78 0,67 0,22 0,31 0,26 - 0,3 0,18 0,42 0,14
J [kgm2] 0,0002 0,0004 0,0003 0,00008 0,00015 0,00012 - 0,0003 0,00009 0,00018 0,00006
28/38W [kg] 0,92 1,25 1,1 0,36 0,49 0,43 1 0,58 0,3 0,69 0,22
J [kgm2] 0,0005 0,0009 0,0007 0,0002 0,00034 0,00027 0,0007 0,0008 0,00021 0,00041 0,00013
38/45W [kg] 1,97 2,5 2,25 0,77 0,98 0,9 1,7 0,8 0,313 0,933 0,35
J [kgm2] 0,0017 0,0027 0,002 0,0007 0,001 0,00084 0,0026 0,001 0,00047 0,00097 0,00035
42/55W [kg] 3,1 3,85 3,46 - 1,5 - 2,8 1,41 0,76 1,81 0,51
J [kgm2] 0,0035 0,006 0,0047 - 0,002 - 0,0036 0,004 0,0012 0,0023 0,0007
48/60W [kg] 4,2 5,3 4,75 - 2 - 4,7 1,62 0,89 2,27 0,67
J [kgm2] 0,006 0,01 0,008 - 0,004 - 0,0078 0,005 0,0017 0,0035 0,001
55/70W [kg] 6,4 7,8 7,1 - - - 5 2,82 1,47 3,55 0,97
J [kgm2] 0,012 0,02 0,015 - - - 0,012 0,012 0,0035 0,007 0,002
65/75W [kg] 9,7 11,8 10,8 - - - 6,9 3,46 1,89 4,89 1,43
J [kgm2] 0,024 0,035 0,03 - - - 0,014 0,017 0,0059 0,0123 0,004
75/90W [kg] 15,2 20,8 18 - - - 14,8 5,03 3 7,86 2,2
J [kgm2] 0,051 0,082 0,07 - - - 0,065 0,032 0,0125 0,0275 0,009
90/100W [kg] 26,2 30,2 28,2 - - - 35,4 7,9 4,87 13,54 3,9
J [kgm2] 0,13 0,17 0,15 - - - 0,162 0,073 0,033 0,108 0,025
100/110W [kg] 32,6 - - - - - - 13,5 7,55 20,15 -
J [kgm2] 0,22 - - - - - - 0,139 0,063 0,14 -
110/125W [kg] 45,5 - - - - - - 18,8 10,15 27,05 -
J [kgm2] 0,38 - - - - - - 0,255 0,11 0,242 -
125/145W [kg] 68,8 - - - - - - 27,4 14,9 40,9 -
J [kgm2] 0,76 - - - - - - 0,463 0,21 0,48 -
fig.1 fig.2 fig.3
fig.4 fig.5 fig.6
Weight and moments of inertia are calculated on hubs with max diameter bore.
GRS aluminum
Direct drives (073.00)19
www.sitspa.com
Tables for TRASCO® couplings with taper or splined bores
Taper 1:5 per: BOSCH - BUCHER- LEDUC - DÜSTERLOH
Taper 1:8 per:ATOS - CASAPPA - GARBE LAHMEYER - JOTTI & STROZZIMARZOCCHI - SALAMI - SAUER-FLUID
Taper 1:10 per: PARKER HANNIFIN NMF - TEVES
Code ø d + 0,05 b JS9 t2 + 0,1 Ik
a1 9,85 2 1 11,5
a2 16,85 3 1,8 18,5
a3 19,85 4 2,2 21,5
a4 21,95 3 1,8 21,5
a5 24,85 5 2,9 26,5
a6 29,85 6 2,6 31,5
a7 34,85 6 2,6 36,5
a8 39,85 6 2,6 41,5
Code ø d + 0,05 b + 0,05 t2 + 0,1 Ik
b1 9,7 2,4 6 17
b2 11,6 3 7,1 16,5
b3 13 2,4 7,3 21
b4 14 3 8,5 17,5
b5 14,3 3,2 8,5 19,5
b6 17,287 3,2 9,6 24
b7 17,287 4 10,3 24
b8 17,287 3 9,7 24
b9 22,002 3,99 12,4 28
b10 25,463 4,78 15,1 36
b11 25,463 5 15,5 36
b12 27 4,78 15,3 32,5
b13 28,45 6 15,1 38,5
b14 33,176 6,38 18,8 44
b15 33,176 7 18,8 44
b16 43,057 7,95 3,378 51
b17 41,15 8 3,1 42,5
Code ø d + 0,05 b JS9 t2 + 0,1 Ik
c1 19,95 5 12,1 32
c2 24,95 6 14,1 45
c3 29,75 8 17 50
SAE splined profile
DIN 5482
DIN 5480
Code Size Head Pitch N. of teeth �
PH-S 5/8” 14,28 16/32 9 30°
Pl-S 3/4” 17,46 16/32 11 30°
PB-S 7/8” 20,63 16/32 13 30°
PB-BS 1” 23,81 16/32 15 30°
PJ 1 1/8” 26,98 16/32 17 30°
PC-S 1 1/4” 29,63 dic-24 14 30°
PA-S 1 3/8” 33,33 16/32 21 30°
PD-S 1 1/2” 36,51 16/32 23 30°
PE-S 1 3/4” 42,86 16/32 27 30°
PF 2 9/16” 63,5 16/32 40 30°
Code Size Head Pitch N. of teeth Tolerance
P 8217 A 17 x 14 14,4 1,6 9 0,6
P 8228 A 28 x 25 26,25 1,75 15 0,302
P 8230 A 30 x 27 28 1,75 16 0,327
P 8235 A 35 x 31 31,5 1,75 18 0,676
P 8240 A 40 x 36 38 1,9 20 0,049
P 8245 A 45 x 41 44 2 22 0,181
P 8250 A 50 x 45 48 2 24 0,181
Size Head Pitch N. of teeth
20 x 1 x 18 x 7 H 18 1 18
20 x 1,25 x 14 x 7 H 17,5 1,25 14
25 x 1,25 x 18 x 7 H 22,5 1,25 18
30 x 2 x 13 x 7 H 26 2 13
30 x 2 x 14 x 7 H 26 2 14
35 x 2 x 16 x 7 H 32 2 16
40 x 2 x 18 x 7 H 36 2 18
45 x 2 x 21 x 7 H 41 2 21
48 x 2 x 22 x 9 H 44 2 22
50 x 2 x 24 x 7 H 48 2 24
ø ø
TRASCO
TRASCO